Roller-skate.



F. KRATKY. ROLLER SKATE. APPLIOA'TIO PILED 0013, 191s.

lPatented Feb.9,1l915,

3 SHEETS-SHEET 1 www@ . Y vwfv., .l/ n M /&\\4\\\ A TTORALW P KRATKY.ROLLER SKATE. APPLICATION FILED 0GT.3, 19713.

Ywanted Feb. 9, 1915.

43 SHEETS-SHEET 2.

n INI/EN TOR. (7l/ZM WITNESSES,

A TTORNE ysV F. KRATKY. ROLLER SKTE.

APPLICATION FILED 00123, 191s.

Patented Feb. 9, 19154 3 SHEETS-SHEET 3.

r. NVENTOR. @5w/ mi?? SYM v YLYS.

`v arins of the clamps'37 being pivoted together at 4the point 39. p y

In order to operate the plate '35 and the clamps 37 I provide a centraldisk 40 which is directly but pivotally connected to the Larin'of'onenofthev clamps 87 and which op- "erates the'plate 35 by means of'a pivotalconnection with 'a ylink 41 :which is pivote'd in turn to1 the plate 35.Fixed to the disk 4.0 is anarmLQ b'ywhicli the diskmay be clamped andIpprovide' a' series of teeth 4B with which the arm 42 is adapted toengage land which holdssai'd arm in vadjusted position. lvembe'rs 35`and 37 n1ay be adjusted tofjdiiierent sized shoes by adjusting thefpoint '39 Where the arms 'of the sole clamp -are-'pivoted together,-and also the point 44 Where thelik'tl connects'wi'th the disk 40. 'n''order 'toprovide for steering the skate I use only' 'one wheel. such as17'Which is pivoted in a'yoke 16,'said yoke being provided with anlupwardly extending'short 'shaftlt which is journaled in the plate 21,

' and which is squared at'its upper endl to re-V eeive the squared endof a-socket l5 which 'is 'extended upwardly in a shaft 15 which carriesat its upper end a steering Wheel es. fsa. Fig. 9.

'In'order' to provide for braking of the skates on hills, or in'cases ofemergency, l provide two brake arms such as @iT-i7 which are pivotallyconnected to .the Aplate Q1 an'd'ivhich' carry shoes 48 adapted toenlfgage with the rims' of the Wheels Levers Ll''are pivoted at thepoint Qand extend diagonally toward the 'center line ,of the iplatc'Ql,their inner .ends beingpifovided with slots such as which aread'apted to'receive a pin 5l. The pin 5l also passes through the end o f'the link52, the, forward 'entl of which connects to a; cord 14C whichpasses'around a guide pin 53 and thus is carried up alongside of theshaft 15 so as to be convenienttothe skater. The brake shoes 48 arenormally Withdrawn from contact with the 1Wheels by means of -springssuchas 61 which are pi'v'otally connected to i,sweght upon the plate 1,the member@ Wlll'becompre'ssed'between the plates l and Elfand'that thepoint 3 Will'be carried rear- Wardly around'the center 'of the axle asan tins'Willb-e that the paWl 4 will be lifted andthe Wheel 5 with theaxle 6 will be ro- 'tatedl When the skater shifts his Weight to' theother skate the springs 9 Will raise Vthe lplate l to its normalposition Wherepair by means of links such as 50-"50, but

the skates may also be operated Without being interconnected.

lt will be-understood that while l hare shown' and described thepreferred form oi. my invention, various modifications thereof maybe'niade `Without departing from 'the spirit of my invention, and that Iconteniplate all Isuch;modifications as are mechanically eqnivalent tothe device shown and described herein.

Having thus described my invention, what l claim4 is l. A skatecomprising in combination, a frame, a pair of Wheels journaled to saidframe, a plate 'carried by said frame and movable relatively thereto, aresilient niember having one end fixed to said frame and being bent intocontact With said movable plate, arms pirotally connected to the axle ofsaid Wheels and also to said member, a toothed wheelcarried by the axleof said Wheels, and a pawl adapted to engage said toothed Wheel, saidpawlfbeing pivoted to said membernear the end thereof opposite to itsplace of attachment to the frame 2. A skate comprising in combination, aframe, a pair of rear wheels rotatably con-- nectedto said traine; aplate carried by said frame and adapted to more relatively thereaxis atthe saine time that the point 27 is l carried upward. The result ofthese moto, springs intermediate said plate and said l frame, toothedWheels fixed to the axle of said Wheels, and pawls pi\' otally connectedto said movable plate and arranged to operate 'said toothed Wheels fromenergy derived from said springs.

ln 'testimony whereof l ailix my signa ture inthe presence of twoWitnesses.

FRANK KRATKY. l/Vitnesses:

RUDOLPH Limia', RUDOLPH HANAN.

